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What is the biggest Ip range you can block?

Posted: 05 Jun 2019, 01:10
by dwhs
The example shows (e.g. 192.168.254.0/24)

Is it possible to block say: 192. everything after that?

Like maybe: 192.0.0.0/8 which I think blocks 16 million IPs?

Re: What is the biggest Ip range you can block?

Posted: 17 Jun 2019, 02:18
by steviedweb
Yes, you can block /8 though I would recommend /16 unless you are really trying to block and entire country and know that the entire /8 range is exclusive to that country (ie 73.0.0.0/8 is registered to Comcast = USA)

Re: What is the biggest Ip range you can block?

Posted: 25 Jun 2019, 18:54
by dwhs
Awesome, thanks!